Chrome，
QQ浏览器
.
![[中考数学]二次函数压轴小题，学会这些，解题易如反掌](http://imgshow.1ydt.com/img?url=%2F%2Fi0.hdslb.com%2Fbfs%2Farchive%2F2bde60fad9d6dcbae9ce19e18b8d395ec83aa35c.jpg%40672w_378h_1c_%21web-search-common-cover)
.